What Would Be Observed by Live-Cell Fluorescence Microscopy Immediately After

question 13

Multiple Choice

What would be observed by live-cell fluorescence microscopy immediately after HIV entry if HIV is endocytosed first, and then later fuses with the endocytotic vesicle membrane?

• A) A spot of red fluorescence will be visible on the infected cell's plasma membrane, marking the site of membrane fusion and HIV entry.
• B) The red fluorescent dye-labelled lipids will appear in the infected cell's interior.
• C) A spot of red fluorescence will diffuse in the infected cell's cytoplasm.
• D) A spot of red fluorescence will remain outside the cell after delivering the viral capsid.

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